Convertible grill



FIG. 1 is a perspective view as seen from the bottom, rear, and right side of a grill showing the new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a perspective view as seen from the bottom, rear, and right side with one element of the grill in an alternate position;

FIG. 9 is a right side view thereof; and,

FIG. 10 is a left side view thereof.

The broken lines in the drawings are included for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a convertible grill, as shown and described. 